Add Snowmtl (#6195)

* Add Snowmtl

* Remove logs

* Remove file unused

* Fix status

* Improve Intercept

* Cleanup

* Refactoring

* Use StaticLayout

* Change the min version of the Android API

* Fix function name

* Fix dialog box

* Cleanup

* Typo

* Use custom font

* Refactoring

* Use font config

* Remove unused transfer data class

* Fix font color

* Add normal font

* Cleanup

* Use Color class
This commit is contained in:
Chopper 2024-11-28 10:39:23 -03:00 committed by Draff
parent 827fbace8d
commit 5911343a9a
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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android">
<application>
<activity
android:name=".en.snowmtl.SnowmtlUrlActivity"
android:excludeFromRecents="true"
android:exported="true"
android:theme="@android:style/Theme.NoDisplay">
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data
android:host="snowmtl.ru"
android:pathPattern="/comics/..*"
android:scheme="https" />
</intent-filter>
</activity>
</application>
</manifest>

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ext {
extName = 'Snow Machine Translations'
extClass = '.Snowmtl'
extVersionCode = 1
isNsfw = true
}
apply from: "$rootDir/common.gradle"

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package eu.kanade.tachiyomi.extension.en.snowmtl
import android.graphics.Bitmap
import android.graphics.BitmapFactory
import android.graphics.Canvas
import android.graphics.Color
import android.graphics.Paint
import android.graphics.Typeface
import android.graphics.text.LineBreaker
import android.os.Build
import android.text.Layout
import android.text.StaticLayout
import android.text.TextPaint
import androidx.annotation.RequiresApi
import eu.kanade.tachiyomi.network.GET
import kotlinx.serialization.decodeFromString
import kotlinx.serialization.json.Json
import okhttp3.Interceptor
import okhttp3.MediaType.Companion.toMediaType
import okhttp3.OkHttpClient
import okhttp3.Response
import okhttp3.ResponseBody.Companion.toResponseBody
import uy.kohesive.injekt.injectLazy
import java.io.ByteArrayOutputStream
import java.io.File
import java.io.FileOutputStream
import java.io.IOException
import java.io.InputStream
import kotlin.math.pow
import kotlin.math.sqrt
// The Interceptor joins the captions and pages of the manga.
@RequiresApi(Build.VERSION_CODES.O)
class ComposedImageInterceptor(
private val baseUrl: String,
private val client: OkHttpClient,
) : Interceptor {
private val json: Json by injectLazy()
private val fontFamily: MutableMap<String, Pair<String, Typeface?>> = mutableMapOf(
"sub" to Pair<String, Typeface?>("$baseUrl/images/sub.ttf", null),
"sfx" to Pair<String, Typeface?>("$baseUrl/images/sfx.ttf", null),
"normal" to Pair<String, Typeface?>("$baseUrl/images/normal.ttf", null),
)
override fun intercept(chain: Interceptor.Chain): Response {
val request = chain.request()
val url = request.url.toString()
val isPageImageUrl = url.contains("storage.${baseUrl.substringAfterLast("/")}", true)
if (isPageImageUrl.not()) {
return chain.proceed(request)
}
val translation = request.url.fragment?.parseAs<List<Translation>>()
?: throw IOException("Translation not found")
val imageRequest = request.newBuilder()
.url(url)
.build()
val response = chain.proceed(imageRequest)
if (response.isSuccessful.not()) {
return response
}
loadAllFont(chain)
val bitmap = BitmapFactory.decodeStream(response.body.byteStream())!!
.copy(Bitmap.Config.ARGB_8888, true)
val canvas = Canvas(bitmap)
translation
.filter { it.text.isNotBlank() }
.forEach { caption ->
val textPaint = createTextPaint(selectFontFamily(caption.type))
val dialogBox = createDialogBox(caption, textPaint, bitmap)
val y = getYAxis(textPaint, caption, dialogBox)
canvas.draw(dialogBox, caption, caption.x1, y)
}
val output = ByteArrayOutputStream()
val format = when (url.substringAfterLast(".").lowercase()) {
"png" -> Bitmap.CompressFormat.PNG
"jpeg", "jpg" -> Bitmap.CompressFormat.JPEG
else -> Bitmap.CompressFormat.WEBP
}
bitmap.compress(format, 100, output)
val responseBody = output.toByteArray().toResponseBody(mediaType)
return response.newBuilder()
.body(responseBody)
.build()
}
private fun createTextPaint(font: Typeface?): TextPaint {
val defaultTextSize = 50.sp // arbitrary
return TextPaint().apply {
color = Color.BLACK
textSize = defaultTextSize
font?.let {
typeface = it
}
isAntiAlias = true
}
}
private fun selectFontFamily(type: String): Typeface? {
if (type in fontFamily) {
return fontFamily[type]?.second
}
return when (type) {
"inside", "outside" -> fontFamily["sfx"]?.second
else -> fontFamily["normal"]?.second
}
}
private fun loadAllFont(chain: Interceptor.Chain) {
fontFamily.keys.forEach { key ->
val font = fontFamily[key] ?: return@forEach
if (font.second != null) {
return@forEach
}
fontFamily[key] = key to (loadRemoteFont(font.first, chain) ?: loadFont("coming_soon_regular.ttf"))
}
}
/**
* Loads font from the `assets/fonts` directory within the APK
*
* @param fontName The name of the font to load.
* @return A `Typeface` instance of the loaded font or `null` if an error occurs.
*
* Example usage:
* <pre>{@code
* val typeface: TypeFace? = loadFont("filename.ttf")
* }</pre>
*/
private fun loadFont(fontName: String): Typeface? {
return try {
this::class.java.classLoader!!
.getResourceAsStream("assets/fonts/$fontName")
.toTypeface(fontName)
} catch (e: Exception) {
null
}
}
/**
* Loads a remote font and converts it into a usable font object.
*
* This function makes an HTTP request to download a font from a specified remote URL.
* It then converts the response into a usable font object.
*/
private fun loadRemoteFont(fontUrl: String, chain: Interceptor.Chain): Typeface? {
return try {
val request = GET(fontUrl, chain.request().headers)
val response = client
.newCall(request).execute()
.takeIf(Response::isSuccessful) ?: return null
val fontName = request.url.pathSegments.last()
response.body.byteStream().toTypeface(fontName)
} catch (e: Exception) {
null
}
}
private fun InputStream.toTypeface(fontName: String): Typeface? {
val fontFile = File.createTempFile(fontName, fontName.substringAfter("."))
this.copyTo(FileOutputStream(fontFile))
return Typeface.createFromFile(fontFile)
}
/**
* Adjust the text to the center of the dialog box when feasible.
*/
private fun getYAxis(textPaint: TextPaint, caption: Translation, dialogBox: StaticLayout): Float {
val fontHeight = textPaint.fontMetrics.let { it.bottom - it.top }
val dialogBoxLineCount = caption.height / fontHeight
/**
* Centers text in y for captions smaller than the dialog box
*/
return when {
dialogBox.lineCount < dialogBoxLineCount -> caption.centerY - dialogBox.lineCount / 2f * fontHeight
else -> caption.y1
}
}
private fun createDialogBox(caption: Translation, textPaint: TextPaint, bitmap: Bitmap): StaticLayout {
var dialogBox = createBoxLayout(caption, textPaint)
/**
* The best way I've found to adjust the text in the dialog box (Especially in long dialogues)
*/
while (dialogBox.height > caption.height) {
textPaint.textSize -= 0.5f
dialogBox = createBoxLayout(caption, textPaint)
}
// Use source setup
if (caption.isNewApi) {
textPaint.color = caption.foregroundColor
textPaint.bgColor = caption.backgroundColor
textPaint.style = if (caption.isBold) Paint.Style.FILL_AND_STROKE else Paint.Style.FILL
}
/**
* Forces font color correction if the background color of the dialog box and the font color are too similar.
* It's a source configuration problem.
*/
textPaint.adjustTextColor(caption, bitmap)
return dialogBox
}
private fun createBoxLayout(caption: Translation, textPaint: TextPaint) =
StaticLayout.Builder.obtain(caption.text, 0, caption.text.length, textPaint, caption.width.toInt()).apply {
setAlignment(Layout.Alignment.ALIGN_CENTER)
setIncludePad(false)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
setBreakStrategy(LineBreaker.BREAK_STRATEGY_BALANCED)
}
}.build()
// Invert color in black dialog box.
private fun TextPaint.adjustTextColor(caption: Translation, bitmap: Bitmap) {
val pixelColor = bitmap.getPixel(caption.centerX.toInt(), caption.centerY.toInt())
val inverseColor = (Color.WHITE - pixelColor) or Color.BLACK
val minDistance = 80f // arbitrary
if (colorDistance(pixelColor, caption.foregroundColor) > minDistance) {
return
}
color = inverseColor
}
private inline fun <reified T> String.parseAs(): T {
return json.decodeFromString(this)
}
private fun Canvas.draw(layout: StaticLayout, caption: Translation, x: Float, y: Float) {
save()
translate(x, y)
rotate(caption.angle)
layout.draw(this)
restore()
}
private val Int.sp: Float get() = this * SCALED_DENSITY
// ============================= Utils ======================================
/**
* Calculates the Euclidean distance between two colors in RGB space.
*
* This function takes two integer values representing hexadecimal colors,
* converts them to their RGB components, and calculates the Euclidean distance
* between the two colors. The distance provides a measure of how similar or
* different the two colors are.
*
*/
private fun colorDistance(colorA: Int, colorB: Int): Double {
val a = Color.valueOf(colorA)
val b = Color.valueOf(colorB)
return sqrt(
(b.red() - a.red()).toDouble().pow(2) +
(b.green() - a.green()).toDouble().pow(2) +
(b.blue() - a.blue()).toDouble().pow(2),
)
}
companion object {
const val SCALED_DENSITY = 1.5f // arbitrary
val mediaType = "image/png".toMediaType()
}
}

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package eu.kanade.tachiyomi.extension.en.snowmtl
import eu.kanade.tachiyomi.source.model.Filter
class SelectionList(displayName: String, private val vals: List<Option>, state: Int = 0) :
Filter.Select<String>(displayName, vals.map { it.name }.toTypedArray(), state) {
fun selected() = vals[state]
}
data class Option(val name: String = "", val value: String = "", val query: String = "")
class GenreList(title: String, genres: List<Genre>) :
Filter.Group<GenreCheckBox>(title, genres.map { GenreCheckBox(it.name, it.id) })
class GenreCheckBox(name: String, val id: String = name) : Filter.CheckBox(name)
class Genre(val name: String, val id: String = name)
val genreList: List<Genre> = listOf(
Genre("Action"),
Genre("Adult"),
Genre("Adventure"),
Genre("Comedy"),
Genre("Drama"),
Genre("Ecchi"),
Genre("Fantasy"),
Genre("Gender Bender"),
Genre("Harem"),
Genre("Historical"),
Genre("Horror"),
Genre("Josei"),
Genre("Lolicon"),
Genre("Martial Arts"),
Genre("Mature"),
Genre("Mecha"),
Genre("Mystery"),
Genre("Psychological"),
Genre("Romance"),
Genre("School Life"),
Genre("Sci-fi"),
Genre("Seinen"),
Genre("Shoujo"),
Genre("Shoujo Ai"),
Genre("Shounen"),
Genre("Shounen Ai"),
Genre("Slice of Life"),
Genre("Smut"),
Genre("Sports"),
Genre("Supernatural"),
Genre("Tragedy"),
Genre("Yaoi"),
Genre("Yuri"),
)
val sortByList = listOf(
Option("All"),
Option("Most Views", "views"),
Option("Most Recent", "recent"),
).map { it.copy(query = "sort_by") }

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package eu.kanade.tachiyomi.extension.en.snowmtl
import android.os.Build
import androidx.annotation.RequiresApi
import eu.kanade.tachiyomi.network.GET
import eu.kanade.tachiyomi.network.interceptor.rateLimit
import eu.kanade.tachiyomi.source.model.Filter
import eu.kanade.tachiyomi.source.model.FilterList
import eu.kanade.tachiyomi.source.model.MangasPage
import eu.kanade.tachiyomi.source.model.Page
import eu.kanade.tachiyomi.source.model.SChapter
import eu.kanade.tachiyomi.source.model.SManga
import eu.kanade.tachiyomi.source.online.ParsedHttpSource
import kotlinx.serialization.decodeFromString
import kotlinx.serialization.encodeToString
import kotlinx.serialization.json.Json
import okhttp3.HttpUrl.Companion.toHttpUrl
import okhttp3.Request
import org.jsoup.nodes.Document
import org.jsoup.nodes.Element
import rx.Observable
import uy.kohesive.injekt.injectLazy
import java.text.SimpleDateFormat
import java.util.Calendar
import java.util.Locale
@RequiresApi(Build.VERSION_CODES.M)
class Snowmtl : ParsedHttpSource() {
override val name = "Snow Machine Translations"
override val baseUrl = "https://snowmtl.ru"
override val lang = "en"
override val supportsLatest = true
private val json: Json by injectLazy()
override val client = network.cloudflareClient.newBuilder()
.rateLimit(2)
.addInterceptor(ComposedImageInterceptor(baseUrl, super.client))
.build()
// ============================== Popular ===============================
private val popularFilter = FilterList(SelectionList("", listOf(Option(value = "views", query = "sort_by"))))
override fun popularMangaRequest(page: Int) = searchMangaRequest(page, "", popularFilter)
override fun popularMangaSelector() = searchMangaSelector()
override fun popularMangaFromElement(element: Element) = searchMangaFromElement(element)
override fun popularMangaNextPageSelector() = searchMangaNextPageSelector()
// =============================== Latest ===============================
private val latestFilter = FilterList(SelectionList("", listOf(Option(value = "recent", query = "sort_by"))))
override fun latestUpdatesRequest(page: Int) = searchMangaRequest(page, "", latestFilter)
override fun latestUpdatesSelector() = searchMangaSelector()
override fun latestUpdatesFromElement(element: Element) = searchMangaFromElement(element)
override fun latestUpdatesNextPageSelector() = searchMangaNextPageSelector()
// =========================== Search ============================
override fun searchMangaRequest(page: Int, query: String, filters: FilterList): Request {
val url = "$baseUrl/search".toHttpUrl().newBuilder()
.addQueryParameter("page", page.toString())
if (query.isNotBlank()) {
url.addQueryParameter("query", query)
}
filters.forEach { filter ->
when (filter) {
is SelectionList -> {
val selected = filter.selected()
if (selected.value.isBlank()) {
return@forEach
}
url.addQueryParameter(selected.query, selected.value)
}
is GenreList -> {
filter.state.filter(GenreCheckBox::state).forEach { genre ->
url.addQueryParameter("genres", genre.id)
}
}
else -> {}
}
}
return GET(url.build(), headers)
}
override fun fetchSearchManga(page: Int, query: String, filters: FilterList): Observable<MangasPage> {
if (query.startsWith(PREFIX_SEARCH)) {
val slug = query.removePrefix(PREFIX_SEARCH)
return fetchMangaDetails(SManga.create().apply { url = "/comics/$slug" }).map { manga ->
MangasPage(listOf(manga), false)
}
}
return super.fetchSearchManga(page, query, filters)
}
override fun searchMangaSelector() = "section h2 + div > div"
override fun searchMangaFromElement(element: Element) = SManga.create().apply {
title = element.selectFirst("h3")!!.text()
thumbnail_url = element.selectFirst("img")?.absUrl("src")
setUrlWithoutDomain(element.selectFirst("a")!!.absUrl("href"))
}
override fun searchMangaNextPageSelector() = "a[href*=search]:contains(Next)"
// =========================== Manga Details ============================
override fun mangaDetailsParse(document: Document) = SManga.create().apply {
title = document.selectFirst("h1")!!.text()
description = document.selectFirst("p:has(span:contains(Synopsis))")?.ownText()
author = document.selectFirst("p:has(span:contains(Author))")?.ownText()
genre = document.select("h2:contains(Genres) + div span").joinToString { it.text() }
thumbnail_url = document.selectFirst("img.object-cover")?.absUrl("src")
document.selectFirst("p:has(span:contains(Status))")?.ownText()?.let {
status = when (it.lowercase()) {
"ongoing" -> SManga.ONGOING
"complete" -> SManga.COMPLETED
else -> SManga.UNKNOWN
}
}
setUrlWithoutDomain(document.location())
}
// ============================== Chapters ==============================
override fun chapterListSelector() = "section li"
override fun chapterFromElement(element: Element) = SChapter.create().apply {
element.selectFirst("a")!!.let {
name = it.ownText()
setUrlWithoutDomain(it.absUrl("href"))
}
date_upload = parseChapterDate(element.selectFirst("span")?.text())
}
// =============================== Pages ================================
override fun pageListParse(document: Document): List<Page> {
val pages = document.selectFirst("div#json-data")
?.ownText()?.parseAs<List<PageDto>>()
?: throw Exception("Pages not found")
return pages.mapIndexed { index, dto ->
val imageUrl = when {
dto.imageUrl.startsWith("http") -> dto.imageUrl
else -> "https://${dto.imageUrl}"
}
val fragment = json.encodeToString<List<Translation>>(dto.translations)
Page(index, imageUrl = "$imageUrl#$fragment")
}
}
override fun imageUrlParse(document: Document): String = ""
// ============================= Utilities ==============================
private fun parseChapterDate(date: String?): Long {
date ?: return 0
return try { dateFormat.parse(date)!!.time } catch (_: Exception) { parseRelativeDate(date) }
}
private fun parseRelativeDate(date: String): Long {
val number = Regex("""(\d+)""").find(date)?.value?.toIntOrNull() ?: return 0
val cal = Calendar.getInstance()
return when {
date.contains("day", true) -> cal.apply { add(Calendar.DAY_OF_MONTH, -number) }.timeInMillis
date.contains("hour", true) -> cal.apply { add(Calendar.HOUR, -number) }.timeInMillis
date.contains("minute", true) -> cal.apply { add(Calendar.MINUTE, -number) }.timeInMillis
date.contains("second", true) -> cal.apply { add(Calendar.SECOND, -number) }.timeInMillis
date.contains("week", true) -> cal.apply { add(Calendar.DAY_OF_MONTH, -number * 7) }.timeInMillis
else -> 0
}
}
private inline fun <reified T> String.parseAs(): T {
return json.decodeFromString(this)
}
// =============================== Filters ================================
override fun getFilterList(): FilterList {
val filters = mutableListOf<Filter<*>>(
SelectionList("Sort", sortByList),
Filter.Separator(),
GenreList(title = "Genres", genres = genreList),
)
return FilterList(filters)
}
companion object {
const val PREFIX_SEARCH = "id:"
private val dateFormat: SimpleDateFormat = SimpleDateFormat("dd MMMM yyyy", Locale.US)
}
}

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package eu.kanade.tachiyomi.extension.en.snowmtl
import android.graphics.Color
import android.os.Build
import androidx.annotation.RequiresApi
import kotlinx.serialization.SerialName
import kotlinx.serialization.Serializable
import kotlinx.serialization.builtins.ListSerializer
import kotlinx.serialization.json.JsonArray
import kotlinx.serialization.json.JsonElement
import kotlinx.serialization.json.JsonTransformingSerializer
import kotlinx.serialization.json.buildJsonObject
import kotlinx.serialization.json.jsonArray
import kotlinx.serialization.json.jsonObject
import kotlinx.serialization.json.put
@Serializable
class PageDto(
@SerialName("img_url")
val imageUrl: String,
@Serializable(with = TranslationsListSerializer::class)
val translations: List<Translation> = emptyList(),
)
@Serializable
@RequiresApi(Build.VERSION_CODES.O)
class Translation(
val x1: Float,
val y1: Float,
val x2: Float,
val y2: Float,
val text: String,
val angle: Float = 0f,
val isBold: Boolean = false,
val isNewApi: Boolean = false,
val type: String = "sub",
private val fbColor: List<Int> = emptyList(),
private val bgColor: List<Int> = emptyList(),
) {
val width get() = x2 - x1
val height get() = y2 - y1
val centerY get() = (y2 + y1) / 2f
val centerX get() = (x2 + x1) / 2f
val foregroundColor: Int get() {
val color = fbColor.takeIf { it.isNotEmpty() }
?: return Color.BLACK
return Color.rgb(color[0], color[1], color[2])
}
val backgroundColor: Int get() {
val color = bgColor.takeIf { it.isNotEmpty() }
?: return Color.WHITE
return Color.rgb(color[0], color[1], color[2])
}
}
private object TranslationsListSerializer :
JsonTransformingSerializer<List<Translation>>(ListSerializer(Translation.serializer())) {
override fun transformDeserialize(element: JsonElement): JsonElement {
return JsonArray(
element.jsonArray.map { jsonElement ->
val (coordinates, text) = getCoordinatesAndCaption(jsonElement)
buildJsonObject {
put("x1", coordinates[0])
put("y1", coordinates[1])
put("x2", coordinates[2])
put("y2", coordinates[3])
put("text", text)
try {
val obj = jsonElement.jsonObject
obj["fg_color"]?.let { put("fbColor", it) }
obj["bg_color"]?.let { put("bgColor", it) }
obj["angle"]?.let { put("angle", it) }
obj["type"]?.let { put("type", it) }
obj["is_bold"]?.let { put("isBold", it) }
put("isNewApi", true)
} catch (_: Exception) { }
}
},
)
}
private fun getCoordinatesAndCaption(element: JsonElement): Pair<JsonArray, JsonElement> {
return try {
val arr = element.jsonArray
arr[0].jsonArray to arr[1]
} catch (_: Exception) {
val obj = element.jsonObject
obj["bbox"]!!.jsonArray to obj["text"]!!
}
}
}

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package eu.kanade.tachiyomi.extension.en.snowmtl
import android.app.Activity
import android.content.ActivityNotFoundException
import android.content.Intent
import android.os.Bundle
import android.util.Log
import kotlin.system.exitProcess
class SnowmtlUrlActivity : Activity() {
private val tag = javaClass.simpleName
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
val pathSegments = intent?.data?.pathSegments
if (pathSegments != null && pathSegments.size > 1) {
val item = pathSegments[1]
val mainIntent = Intent().apply {
action = "eu.kanade.tachiyomi.SEARCH"
putExtra("query", "${Snowmtl.PREFIX_SEARCH}$item")
putExtra("filter", packageName)
}
try {
startActivity(mainIntent)
} catch (e: ActivityNotFoundException) {
Log.e(tag, e.toString())
}
} else {
Log.e(tag, "could not parse uri from intent $intent")
}
finish()
exitProcess(0)
}
}